Summary Office Add-ins with custom functions fail to load when sideloaded via Trusted Add-in Catalog on Excel 365 Version 2607 Build 16.0.20228.20014 (Current Channel Preview).

Copilot Cowork is now generally available for all Microsoft 365 Copilot users with a new interface and features. Copilot Cowork (powered by Work IQ) is an agentic system that brings enterprise-ready ...